Command Reference Guide

3Com Router 5000 Family and Router 6000 Family speed ● 309
Command Reference
speed
Purpose Use the speed command to set the operating speed of the Ethernet interface.
Use the undo speed command to restore the default operating speed of the
Ethernet interface.
Syntax speed { 10 | 100 | 1000 | negotiation }
undo speed
Parameters 10
Forces the Ethernet interface to work at 10 Mbps.
100
Forces the Ethernet interface to work at 100 Mbps.
1000
Forces the Ethernet interface to work at 1000 Mbps
(only applied to GE interfaces).
negotiation
Sets the Ethernet interface to work in auto-negotiation
mode.
Default By default, the Ethernet interface is working in auto-negotiation mode.
Example Set the FE interface to work in 10Base-T mode.
[3Com -Ethernet0/0/0] speed 10
View This command can be used in the following views:
■ Ethernet Interface view
Description Before setting the Ethernet interface to work in auto-negotiation mode, make sure
that the connected end is working in auto-negotiation mode. If you cannot make
sure, manually set the same operating mode at the two ends.
You can set the rate of FE electrical interface to 10 Mbps, 100 Mbps or auto-sensing
and the rate of GE electrical interface to 10 Mbps, 100 Mbps, 1000 Mbps or
auto-sensing. Nevertheless, the rate of FE optical interface is fixed to 100Mbps and
the rate of GE optical interface is fixed to 1000Mbps, which cannot be changed by
using commands.
As for GE electrical interface, the operating rate of 1000Mbps and the mode of
half-duplex are mutually exclusive. Do not set these two values at the same time.
Related Commands ■ duplex
■ display interface